Fait mathématique: 7293 is a value of n for which n and 2n together use each digit 1-9 exactly once.
Culture générale: 7293 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: December 19th is the day in 2001 that a record high barometric pressure of 1085.6 hPa (32.06 inHg) is recorded at Tosontsengel, Khövsgöl Province, Mongolia.